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Energy losses from the furnace chamber walls during heating and heat treatment of heavy forgings

Author

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  • Hadała, Beata
  • Malinowski, Zbigniew
  • Rywotycki, Marcin

Abstract

The boundary condition models at the inner and outer surface of the furnace wall have been developed taking into account heat transfer due to radiation and convection. The furnace wall temperature has been calculated from the finite element solution to the transient heat conduction equation. The boundary condition model has been validated using measurements on the laboratory furnace. The heat losses from the chamber walls have been calculated for selected wall structures and modes of the furnace operation. The results of computations have shown essential differences in the energy losses. It has been shown that the total heat losses depend on the chamber wall insulation and on the furnace operation mode for the most types of insulations. The best insulation effect has given the chamber wall made of the two types of the mineral fiber slabs. For this wall the total energy losses below 100 MJ/m2 has been obtained over 8 days of the furnace operation. Further, low sensitivity to the furnace operation mode has been noticed. This wall insulation can be utilized for heating ingots to the high temperatures and for the heat treatment processes characterized by a long time of the furnace operation.

Suggested Citation

  • Hadała, Beata & Malinowski, Zbigniew & Rywotycki, Marcin, 2017. "Energy losses from the furnace chamber walls during heating and heat treatment of heavy forgings," Energy, Elsevier, vol. 139(C), pages 298-314.
    • Handle: RePEc:eee:energy:v:139:y:2017:i:c:p:298-314
    DOI: 10.1016/j.energy.2017.07.121
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    References listed on IDEAS

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    1. Rusinowski, Henryk & Szega, Marcin, 2001. "The influence of the operational parameters of chamber furnaces on the consumption of the chemical energy of fuels," Energy, Elsevier, vol. 26(12), pages 1121-1133.
    2. Han, Sang Heon & Chang, Daejun & Huh, Cheol, 2011. "Efficiency analysis of radiative slab heating in a walking-beam-type reheating furnace," Energy, Elsevier, vol. 36(2), pages 1265-1272.
    3. Mirko Filipponi & Federico Rossi & Andrea Presciutti & Stefania De Ciantis & Beatrice Castellani & Ambro Carpinelli, 2016. "Thermal Analysis of an Industrial Furnace," Energies, MDPI, vol. 9(10), pages 1-13, October.
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    1. Ricardo S. Gomez & Túlio R. N. Porto & Hortência L. F. Magalhães & Gicelia Moreira & Anastácia M. M. C. N. André & Ruth B. F. Melo & Antonio G. B. Lima, 2019. "Natural Gas Intermittent Kiln for the Ceramic Industry: A Transient Thermal Analysis," Energies, MDPI, vol. 12(8), pages 1-29, April.
    2. Sajad Mirzaei & Nima Bohlooli Arkhazloo & Farzad Bazdidi-Tehrani & Jean-Benoit Morin & Abdelhalim Loucif & Mohammad Jahazi, 2023. "Influence of Spacers and Skid Sizes on Heat Treatment of Large Forgings within an Industrial Electric Furnace," Energies, MDPI, vol. 16(7), pages 1-18, March.
    3. Iván D. Palacio-Caro & Pedro N. Alvarado-Torres & Luis F. Cardona-Sepúlveda, 2020. "Numerical Simulation of the Flow and Heat Transfer in an Electric Steel Tempering Furnace," Energies, MDPI, vol. 13(14), pages 1-22, July.

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